Machine tools

Details Machine tools Machine tools

1993-05-10

1995-02-14

Howell, Daniel W.

Gear cutting, milling, or planing

Milling

Process

409144, 409211, 409231, B23C 106

Patent

active

053889347

ABSTRACT:
A drive shaft 40 extends through a ram 42. The ram can be driven up and down by rotating a screw shaft 35. The ram carries with it a motor 44 which drives a pulley 36 connected to the top of the shaft 40 for rotating that shaft 40. The ram 42 can be rotated upon operation of a motor 60 which drives a worm 62 to engage a worm wheel 64 which surrounds the ram 42 and is fast therewith.

REFERENCES:
patent: 2722161 (1955-11-01), Berthiez
patent: 3460435 (1969-08-01), Hucks et al.
patent: 3735459 (1973-05-01), Allen
patent: 4557645 (1985-12-01), Marsland
patent: 4570313 (1986-02-01), Holmstrom et al.
patent: 4614468 (1986-09-01), Waldrich et al.
patent: 4720221 (1988-01-01), Yoshioka et al.
patent: 5027682 (1991-07-01), Aiso et al.

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